CVE-2021-34520

Microsoft SharePoint Server Remote Code Execution Vulnerability

CVSS v3 8.1 HIGH
CVSS v2.0 6.5 MEDIUM

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

6.5^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:S/C:P/I:P/A:P

Exploitability : 8.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34520	Patch Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-828/	Third Party Advisory VDB Entry

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:microsoft:sharepoint_foundation:2013:sp1::::::
	cpe:2.3:a:microsoft:sharepoint_server:2016::::enterprise:::
	cpe:2.3:a:microsoft:sharepoint_server:2019:::::::*

History

28 Dec 2023, 23:15

Type	Values Removed	Values Added
CVSS	v2 : ~~6.5~~ v3 : ~~8.8~~	v2 : 6.5 v3 : 8.1
Summary	~~(en) Microsoft SharePoint Server Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-34467, CVE-2021-34468.~~	(en) Microsoft SharePoint Server Remote Code Execution Vulnerability

22 Jul 2021, 13:22

Type	Values Removed	Values Added
References		(MISC) https://www.zerodayinitiative.com/advisories/ZDI-21-828/ - Third Party Advisory, VDB Entry
References	~~(MISC) https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34520 -~~	(MISC) https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34520 - Patch, Vendor Advisory
CWE		CWE-502
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : 6.5 v3 : 8.8
CPE		cpe:2.3:a:microsoft:sharepoint_foundation:2013:sp1:::::: cpe:2.3:a:microsoft:sharepoint_server:2016::::enterprise::: cpe:2.3:a:microsoft:sharepoint_server:2019:::::::*

14 Jul 2021, 19:14

Type	Values Removed	Values Added
New CVE

Information

Published : 2021-07-14 18:15

Updated : 2023-12-28 23:15

NVD link : CVE-2021-34520

Mitre link : CVE-2021-34520

CVE.ORG link : CVE-2021-34520

JSON object : View

Products Affected

microsoft

sharepoint_foundation
sharepoint_server

CWE

CWE-502

Deserialization of Untrusted Data

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